Revert All GPO settings to Undefined (Not reverse what they are now)
I inadvertently applied GPOs to an entire OU which was not ready to be deployed yet. I have unlinked the GPOs but of course they have already been applied. Is there a way to undo these changes (not reverse the setting but make it "clean" aka, "undefined"?
Similar to This answer but I'm looking for a way to make the server look & behave as if these settings were never applied. Surely I'm not the first SA to oops like this. Or even have a machine that needs them unapplied for whatever other reason.
*Note: I have seen this answer else where but I've never heard anything like this before (actually it contradicts everything I've heard) but I'm hopeful there may be some "trick" like it to make it work: (paraphrasing) If you have some really weird gp issues...you can delete the security file which is located in windows\security which will force the machine back to the stage where it joined a domain. Then run "gpupdate /force /boot"